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Foreign Exchange Contracts and Transaction Gains/Losses (Details) (USD $) | 12 Months Ended
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Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012
Foreign Exchange Contracts and Transaction Gains/Losses [Abstract] |  |  |
Foreign exchange contracts outstanding | $ 0 invest_DerivativeNotionalAmount | $ 0 invest_DerivativeNotionalAmount |
Foreign currency transaction exchange gains (losses) | $ (1,000,000)us-gaap_ForeignCurrencyTransactionGainLossBeforeTax | $ (1.3)us-gaap_ForeignCurrencyTransactionGainLossBeforeTax | $ (445,000)us-gaap_ForeignCurrencyTransactionGainLossBeforeTax

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- Definition Aggregate notional amount specified by the derivative(s). Expressed as an absolute value. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Article 12 -Section 13 -Sentence Column B + Details
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- Details
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- Definition Amount before tax of foreign currency transaction realized and unrealized gain (loss) recognized in the income statement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 830 -SubTopic 20 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6450189&loc=d3e30690-110894 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 830 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6450222&loc=d3e30840-110895 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 830 -SubTopic 20 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6450189&loc=d3e30700-110894 + Details
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